38763865 has 32 divisors (see below), whose sum is σ = 55560960. Its totient is φ = 25401600.

The previous prime is 38763863. The next prime is 38763871. The reversal of 38763865 is 56836783.

It is not a de Polignac number, because 38763865 - 2¹ = 38763863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38763863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183610 + ... + 183820.

It is an arithmetic number, because the mean of its divisors is an integer number (1736280).

Almost surely, 2^38763865 is an apocalyptic number.

38763865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38763865 is a deficient number, since it is larger than the sum of its proper divisors (16797095).

38763865 is a wasteful number, since it uses less digits than its factorization.

38763865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433.

The product of its digits is 725760, while the sum is 46.

The square root of 38763865 is about 6226.0633629927. The cubic root of 38763865 is about 338.4353277608.

The spelling of 38763865 in words is "thirty-eight million, seven hundred sixty-three thousand, eight hundred sixty-five".